JPH0277342U

JPH0277342U -

Info

Publication number: JPH0277342U
Application number: JP15891888U
Authority: JP
Priority date: 1988-12-05
Filing date: 1988-12-05
Publication date: 1990-06-13
Anticipated expiration: 2003-12-05
Also published as: JPH089472Y2

Description

[Brief explanation of drawings]

図面は本考案の動的吸収器の実施例を示し、第
１図は、第１の実施例の全体斜視図、第２図はそ
の正面図、第３図は断面図、第４図は第２の実施
例の一部を切欠いて示す全体斜視図、第５図はそ
の垂直断面図、第６図は他の例を示す一部切欠き
斜視図、第７図は第３の実施例の全体斜視図、第
８図は支持体の近接移動を示す垂直断面図、第９
図は同離隔移動を示す断面図、第１０図は第４の
実施例の全体斜視図、第１１図はその軸方向断面
図、第１２図は横断方向断面図、第１３図は２つ
の水槽の接続形式を変更した圧力式の他の実施例
の軸方向断面図、第１４図は第５の実施例の軸方
向断面図、第１５図はその横断方向断面図である
。１，３１，４４……回転軸、２……回転円板、
３，２７……梁ばね、４，２８，４８……質量体
、５……案内ばね、１１，２１，４１……函体、
１２，２２……振動センサー、１３，２３，３４
，４２……調節器、１４，３５……ポンプ、１５
……ソレノイドバルブ、１６……ホース、１７，
３８，４６……ばね、１８……水槽式質量体、１
９，３３……隔板、２０……水位センサー、２４
……電動機、２５……正方向ねじ、２６……逆方
向ねじ、２９……固定軸継平、３２……円筒型水
槽、３６……重量体、３７……質量体水槽、４３
……ステツパー電動機、４５……歯車、４７……
支持台、４９……コイルばね、５０……ローラ、
Ｗ……水槽。 The drawings show an embodiment of the dynamic absorber of the present invention, and FIG. 1 is an overall perspective view of the first embodiment, FIG. 2 is a front view thereof, FIG. 3 is a sectional view, and FIG. FIG. 5 is a vertical sectional view thereof, FIG. 6 is a partially cutaway perspective view showing another example, and FIG. 7 is a partially cutaway perspective view of the third embodiment. Overall perspective view, Figure 8 is a vertical sectional view showing the close movement of the support, Figure 9
10 is an overall perspective view of the fourth embodiment, FIG. 11 is an axial sectional view thereof, FIG. 12 is a transverse sectional view, and FIG. 13 is a sectional view of two water tanks. FIG. 14 is an axial sectional view of another embodiment of the pressure type with a different connection type, FIG. 14 is an axial sectional view of the fifth embodiment, and FIG. 15 is a transverse sectional view thereof. 1, 31, 44...rotating shaft, 2... rotating disk,
3, 27... Beam spring, 4, 28, 48... Mass body, 5... Guide spring, 11, 21, 41... Box,
12, 22... Vibration sensor, 13, 23, 34
, 42... Regulator, 14, 35... Pump, 15
... Solenoid valve, 16 ... Hose, 17,
38, 46...Spring, 18...Water tank type mass body, 1
9, 33... Partition plate, 20... Water level sensor, 24
. . . Electric motor, 25 .
...Stepper electric motor, 45...Gear, 47...
Support stand, 49...Coil spring, 50...Roller,
W...Aquarium.

Claims

[Claims for Utility Model Registration] (1) In a dynamic absorber that absorbs vibration energy by causing forced vibration to resonate with natural vibration, the spring or A self-adjusting dynamic system characterized by converting the characteristics of the mass body and tuning the natural frequency of the absorber itself to the frequency of the external force to obtain an absorption effect against the external force and reduce the vibration response. absorber. (2) A rotating disc 2 is pivotally supported on the rotating shaft 1, a beam spring 3 is fixed from the outer periphery toward the rotating shaft, a mass body 4 is movably engaged with the beam spring, and the mass body 2. The automatic adjustment device according to claim 1, wherein guide springs 5, 5' are stretched between the center side of the rotary disk and the axis of the rotating disk to elastically support the mass body. Dynamic absorber. (3) In a dynamic absorber that absorbs vibration energy by resonating forced vibration with natural vibration, the dynamic absorber measures the excitation force frequency from the excitation source and processes the result. It is characterized by a structure in which the characteristics of the spring or mass body of the absorber are changed and the natural frequency of the absorber itself is tuned to the frequency of the external force, thereby obtaining an absorption effect against the external force and reducing the vibration response. Self-adjusting dynamic absorber. (4) A vibration sensor 12 is attached to the box 11 equipped on the vibrating body, and the pump 14 is connected to the vibration sensor 12 via the regulator 13.
The pump 14 is connected to the water tank W and the mass body 18, and the mass body 18 is supported by springs 17 and 17', and partition plates 19 and 19' and a water level sensor 20 are installed. 4. A self-adjusting dynamic absorber according to claim 3, characterized in that the mass is variable. (5) A self-regulating absorber according to claim 4, characterized in that the mass body 18 supported by a spring is arranged horizontally by a guide beam 18'. (6) A vibration sensor 22 is attached to a box 21 equipped on the vibrating body, and a stepper electric motor 24 is driven via a regulator 23, and its shaft is connected to forward and reverse direction screws 25 and 26. The automatic adjustment according to claim 3, characterized in that the nut body is screwed together to fix the support body, and the beam springs 27, 27' supporting the mass body 28 in a suspended manner are inserted into the support body. Dynamic absorber. (7) A cylindrical water tank 32 in which a partition plate 33 is formed is supported on the rotating shaft 31, and a regulator 34 is installed at the top of the water tank.
and a pump 35, and a heavy body 36 on the opposite side.
4. The self-adjusting dynamic absorber according to claim 3, wherein the pump 35 is connected to a water tank 32 and a mass water tank 37 disposed opposite thereto. (8) The cylindrical water tank 32 has a regulator 34 and a pump 35.
The self-adjusting dynamic absorber according to claim 7, wherein the weight body 36 is omitted and piping is directly connected to the mass body water tank 37. (9) A regulator 42 and a stepper motor 43 are installed outside the box 41 installed on the vibrating body, and a plurality of gears 45, 45' are supported on the shafts 44, 44', and each gear The bases of support rods 47, 47' are fixed to the ends inside the box of each shaft, and the mass body 48 is elastically supported from the tip of each support rod by springs 46, 46'. The self-adjusting dynamic absorber according to claim 3, characterized in that coil springs (49, 49') are stretched between the housing and the housing in the left-right direction.